Heyo, Greek speakers! I've been trying to find a good Koine Greek word like English "practise" as in "He practised his maths/playing the trumpet/meditating/being patient", but I can't find one. I can only think of "μανθάνειν" and "γυμνάζειν". Can you guys think of or do you know any other words?

(δια)μελετάω… why the heck not???
As for both γυμνάζειν τέχνην and ἐποίχομαι... mebbe not in Koine.
Depends how far you wanna bend the rules. Also, keep in mind, the trick is to sift out the “use/do customarily” (e.g. practice law, practice my craft/trade, practice fornication) verbs from the “train/repeat” verbs.
This may or may not help:http://www.perseus.tufts.edu/hopper/def ... rget=greek

(δια)μελετάω… why the heck not???
As for both γυμνάζειν τέχνην and ἐποίχομαι... mebbe not in Koine.
Depends how far you wanna bend the rules. Also, keep in mind, the trick is to sift out the “use/do customarily” (e.g. practice law, practice my craft/trade, practice fornication) verbs from the “train/repeat” verbs.
This may or may not help:http://www.perseus.tufts.edu/hopper/def ... rget=greek